The most massive neutron star ever discovered has been found 3000 light-years away. The tiny star is twice as massive as the Sun but its diameter is mere miles across. This discovery confirms these stars really are made of neutrons. »10/31/10 8:00am 10/31/10 8:00am

A new study estimates that one in four sun-like stars have Earth-sized planets — far more than previously thought. It challenges current theories on how planets form, and may mean a greater chance of finding habitable worlds. »10/29/10 2:00pm 10/29/10 2:00pm

Every 27 years, the star Epsilon Aurigae is swallowed up, and scientists had no idea why. Now, using a special technique that produces images 140 times clearer than the Hubble Space Telescope, we've finally gotten images of it happening. »4/08/10 9:30am 4/08/10 9:30am